The "color force" doesn't actually change the color of quarks because they don't actually have any color. We use the word "color" non-literally here. Now, I'm told that quarks don't "actually" "spin" either, so again, I infer that it's a term used out of convenience, but I'm also told that they do "actually" have angular momentum. How am I to divorce the concept of angular momentum from spin? In what sense do spinless entities have angular momentum? What do we even mean by "actually" in this particular context?